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1/*
2 * linux/drivers/pcmcia/pxa2xx_palmld.c
3 *
4 * Driver for Palm LifeDrive PCMCIA
5 *
6 * Copyright (C) 2006 Alex Osborne <ato@meshy.org>
7 * Copyright (C) 2007-2011 Marek Vasut <marek.vasut@gmail.com>
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License version 2 as
11 * published by the Free Software Foundation.
12 *
13 */
14
15#include <linux/module.h>
16#include <linux/platform_device.h>
17#include <linux/gpio.h>
18
19#include <asm/mach-types.h>
20#include <mach/palmld.h>
21#include "soc_common.h"
22
23static struct gpio palmld_pcmcia_gpios[] = {
24 { GPIO_NR_PALMLD_PCMCIA_POWER, GPIOF_INIT_LOW, "PCMCIA Power" },
25 { GPIO_NR_PALMLD_PCMCIA_RESET, GPIOF_INIT_HIGH,"PCMCIA Reset" },
26};
27
28static int palmld_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
29{
30 int ret;
31
32 ret = gpio_request_array(palmld_pcmcia_gpios,
33 ARRAY_SIZE(palmld_pcmcia_gpios));
34
35 skt->stat[SOC_STAT_RDY].gpio = GPIO_NR_PALMLD_PCMCIA_READY;
36 skt->stat[SOC_STAT_RDY].name = "PCMCIA Ready";
37
38 return ret;
39}
40
41static void palmld_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt)
42{
43 gpio_free_array(palmld_pcmcia_gpios, ARRAY_SIZE(palmld_pcmcia_gpios));
44}
45
46static void palmld_pcmcia_socket_state(struct soc_pcmcia_socket *skt,
47 struct pcmcia_state *state)
48{
49 state->detect = 1; /* always inserted */
50 state->vs_3v = 1;
51 state->vs_Xv = 0;
52}
53
54static int palmld_pcmcia_configure_socket(struct soc_pcmcia_socket *skt,
55 const socket_state_t *state)
56{
57 gpio_set_value(GPIO_NR_PALMLD_PCMCIA_POWER, 1);
58 gpio_set_value(GPIO_NR_PALMLD_PCMCIA_RESET,
59 !!(state->flags & SS_RESET));
60
61 return 0;
62}
63
64static struct pcmcia_low_level palmld_pcmcia_ops = {
65 .owner = THIS_MODULE,
66
67 .first = 1,
68 .nr = 1,
69
70 .hw_init = palmld_pcmcia_hw_init,
71 .hw_shutdown = palmld_pcmcia_hw_shutdown,
72
73 .socket_state = palmld_pcmcia_socket_state,
74 .configure_socket = palmld_pcmcia_configure_socket,
75};
76
77static struct platform_device *palmld_pcmcia_device;
78
79static int __init palmld_pcmcia_init(void)
80{
81 int ret;
82
83 if (!machine_is_palmld())
84 return -ENODEV;
85
86 palmld_pcmcia_device = platform_device_alloc("pxa2xx-pcmcia", -1);
87 if (!palmld_pcmcia_device)
88 return -ENOMEM;
89
90 ret = platform_device_add_data(palmld_pcmcia_device, &palmld_pcmcia_ops,
91 sizeof(palmld_pcmcia_ops));
92
93 if (!ret)
94 ret = platform_device_add(palmld_pcmcia_device);
95
96 if (ret)
97 platform_device_put(palmld_pcmcia_device);
98
99 return ret;
100}
101
102static void __exit palmld_pcmcia_exit(void)
103{
104 platform_device_unregister(palmld_pcmcia_device);
105}
106
107module_init(palmld_pcmcia_init);
108module_exit(palmld_pcmcia_exit);
109
110MODULE_AUTHOR("Alex Osborne <ato@meshy.org>,"
111 " Marek Vasut <marek.vasut@gmail.com>");
112MODULE_DESCRIPTION("PCMCIA support for Palm LifeDrive");
113MODULE_ALIAS("platform:pxa2xx-pcmcia");
114MODULE_LICENSE("GPL");
115

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